VOICED: Caterpillar attacks French trees

The video discusses the impact of the chestnut miner butterfly on chestnut trees in France. The insect lays eggs in leaves, causing premature leaf loss. Due to a warm spring, the butterflies emerged early, leading to a proliferation of larvae. These insects spread via transport and pose a threat to tree health, making them more susceptible to diseases. Control measures like insecticides are costly, and researchers are exploring natural predators like wasps. However, incineration of leaves is currently the most effective method. Authorities in Paris plan to burn leaves to protect the city's chestnut trees.

What causes the premature leaf loss in chestnut trees in France?

• A disease affecting the trees

• A fungus attacking the roots

• A tiny butterfly laying eggs inside the leaves

• A lack of water during the summer

How do the larvae of the butterfly spread to new areas?

• By being carried by the wind

• By flying to new locations

• By hitching rides on trucks and trains

• By swimming across rivers

What happens to the trees as they channel more resources into their leaves?

• Their immune system weakens

• They produce more flowers

• They become more resistant to diseases

• They grow taller

What is one of the experimental methods being tested to control the butterfly population?

• Spraying more insecticides

• Using a special type of wasp

• Planting more trees

• Introducing a new type of butterfly

Why is it advised not to use fallen leaves for compost?

• They release harmful chemicals

• Private composts do not get hot enough to destroy the larvae

• They attract more butterflies

• They do not decompose well